Question

10 = z/2 + 7 Help please..??

Answer 1

$10 = \frac{z}{2} + 7\\\\3 = \frac{z}{2}\\\\\boxed{\bf{z = 6}}$

Answer 2

10 = z/2 + 7

10 - 7 = z/2 + 7 - 7

3 = z/2

3 * 2 = z/2 * 2

6 = z